Comparative Syntax of Fijian and Tongan - Research on how a Proto-Central Pacific evolved from an ergative actancy system into modern Fijian which has an accusative one. Comparison is made with Tongan which retains an ergative system.
Morphosyntax of 2P Pronouns in Tongan - Paper by Michael Dukes of the University of Canterbury and Stanford University examining 'second position' or 'Wackernagel' elements and their functional properties in Tongan. [PDF]